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v3.21.2

Note F - Property, Plant and Equipment (Details Textual) | 3 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2021 USD ($) | May 25, 2021 USD ($) ft² a | Mar. 31, 2021 USD ($)
Construction in Progress, Gross | $ 2,687,807 |  | $ 9,614
Accumulated Depreciation, Depletion and Amortization, Wrote-off | $ 1,944,650 |  |
Facility in Sinton, Texas [Member] |  |  |
Area of Land (Acre) | a |  | 26.5 |
Lessee, Operating Lease, Term of Contract (Year) |  | 99 years |
Capital Expenditures, Expected Cost |  | $ 21,000,000 |
Facility in Sinton, Texas [Member] |  |  |
Area of Real Estate Property (Square Foot) | ft² |  | 70,000 |

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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980 + Details
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